Agricultural tractor.



H.'EVERSOLE. AGRICULTURAL TRACTOR.

APPLICATION FILED MAY 31. 19 12. RENEWED FEB. 12,1917.

11,13 @QOQ. A Patentd May15,1917.

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I i 7/ 44 58 m 42 E a (5 [0' J "If" 13F" ;;--'---"J0" WITNESSES IN VEN TOR. 511 M. Henley Even? H EVERSOLE. AGRICULTURAL TRACTOR.- APPUCATION FILED MAY 31. 1912- RE NEWED {58. 12,1911- 1 QQQfiQW Patented May15,1917

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IN VEN TOR. Henley Eversola;

ATTORNEY:

' matter ANT u it Alt, ILLHJ 01S.

neniomt'r macros.

To all who zit a may concern Be it known that l, HENLEY Evnnsote, a citizen of the United States, and a resident of Newman, county of Douglas, and State of lllinois, have invented a certain useful Agricultural Tractor; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings.

The object of this invention is to provide an improved short turned tractor, particularly adapted for agricultural use;

'lhe chief feature of the invention lies in so mounting the driving wheels which carry practically the entire weight of the machine that they will travel upon the hard andunplowed ground atthe bottom of the furrow while the third or idler wheel upon which hut little Weight comes, travels on the on plowed ground and thus a mashing down or a packing of either the ground to be plowed or that which-has just been plowed, will be prevented.

Another feature lies in the manner of applying power to the driving wheels and in ie means for guiding said wheels whereby they may be turned in opposite directions ancleftect a very short turn of the tractor, causing it to be pivoted practically upon the third or idler wheel.

tltill another feature lies in the manner of attaching the plows beneath the tractorframe and in elevating the same together with the means for-controlling the relation the idler wheel with respect to tlieinain frame.

he nature of the invention will be underone the accompanying drawings and to following description and claims:

.t the drawings, lligure 1 is a side elevation. of my inventionsliown in connection h gang of breaking plows and with said shown in their lowest positions. Fig. a plan vlewtof the same. 3 is a veral section on the line 3-3 of Fig. 2, show ing one of the driving Wheels. Fig. i is a section on the line of Fig. 3. Fig. 5 is a section on the line 5--5 of Fig. 2, showing the idler wheel in elevation and held in its ipper nest position. Fig. 6 is a section simi- 5, but with the wheel partly lowg. 'l is a side elevation of Fig. 6. is a section on the line 8-8 of Fl 1, the means for elovating the plow. is a side elevation of a modified forniiviiig wheel mounting showing means Specificatioxrof Letters Patent.

Patented May 15, 19M. Renewed February 12, 1917. Serial No. 148,243.

for stiffening the fork parts being omitted. Fig. 1O is a plan view of the same.

In detail there is shown in the drawings a tractor having a frame 10, driving wheels so 11 and 12, and an idler wheel 13 and carrying an engine 1% having a crank-shaft 1'5 and fly wheel 16, power from said engine being applied for the propelling of the tractor.

The main frame 10-inay be said to be composed of a trapezoidal central portion with rectangular end portions secured to the two parallel sides of thetrapezoid so that one side of the frame is in alinenient 70 and the forks 17 of the driving Wheels 11. and 12 are vertically mounted within these rectangular portions of the frame and upon opposite sides thereof so that said driving Wheels will not drive in the same furrow at the same time, see Fig. The upper end 19 of the fork 18 for the idlerwheel 13 may reciprocate in the head 26 upon the outer end of a bracket 21 secured to the straight side of the trains substantially midway between its ends.

The crank shaft 15 of the engine 1 1 carries a sprocket wheel upon one and there is a sprocket wheel 122 secured. to clutch shaft 22 with a chain 23 surrounding said sprockets. ()ne portion 2% of the trio-- tion clutch is also secured to the and the other portion of said clutch is operably secured to one end of a shaft as upon the other enol of which there is a gear 27. Said gear Z'Lthrough interrned. gear 28, drives a gear 2-9 secured on verse shaft 31 which carries sprocket in r e 32 and 33. The movable member 253 a clutch operated by means of a h 34. There is a transverse dri ii having. a bearing 36 upon the fo tion of the frame with a sprocket w upon is outer end and a here 39 upon its inner end which meshes face of a doubly beveled gear l-G, afterdescribed, and there a cha rounding the sprocket wheels a driving said beveled gear. There is lar construction to that just descri e the rear portion of the frame 10, that is, there is a transverse shaft at), supported. a bearing 43 and carrying near said o a ing a sprocket wheel and upon or site on beveled pinion l5 whic with a douhl rbeveled gear i the rear driving wheel. 3453 and I wheels 32 and 41.

The driving wheels 11 and 12 are mounted in similar forks 17, the upper end 48 of which is slightly coned and has a bean ing in a spider 49 which has three downwardly extending arms 50 to which are se cured upwardly and inwardly extending arms 51, the lower ends of which are rigidly secured to the rectangular,portion of the frame. wheels is exactly the same. The doubly beveled gear 40 is secured to the upper portion of the fork just above its head and immediately beneath the spider a9 and the beveled pinion 39 upon the shaft 35 meshes with the upper set of teeth thereon, as heretofore descrilied. The inner end of the shaft 35 projects beyond the beveled pinion 3%) and has a bearing in an extension 55 from the spider 49. There is'a bracket 56 secured to the left-hand side of the fork 17, as shown inFig. 4, which afiords one bearing for a shaft 57 upon which is mounted a beveled gear 58 and a sprocket wheel The otherend of said shaft 57 has a bearing in the fork, see dotted lines in Fig. l. The axle (30 for the driving wheel is cured to said wheel and extends beyond the fork 17 upon one side and near its extremity a sprocket wheel (32 is secured with a chain 63 operatively connecting said sprocket and the sprocket 59 upon the shaft 57. Thus it will be noted that when the shaft is driven the beveled pinion 39'will drive the doubly beveled gear 40 and thus, through the beveled gear 58, sprocket wheels 59 and 62 and the chain 63, the wheel 11 will be driven. 1

A steering wheel 64 is mounted on a frame 65, the lower ends ofwhich are secured to the frame 10 and a shaft 66 from said steering wheel extends obliquely toward the forward end of the machine and near its end there is a threaded portion 67 upon which a nut 68 works and there is a crank 69 secured to the extreme upper end of'the fork 17 which has a pivotal connection with said nut 68. An arm 70 is rigidly secured to the crank 69 and to the outer end is pivotally connected a reach rod 71 which extends toward the rear end of the machine and is pivotally connected to the outer end of a lever 72 rigidly secured to the extreme upper end of the fork for the rear driving wheel 12. Thus it will be noted that when said steering wheel 64 is turned, the nut 68 willbe moved longitudinally thereof, but will be kept from turning by its pivotal connection with the lever 69 and by the rod 70 which is connected to the reach rod 71 and said wheels 11 and 12 will be caused to swivel about their axis in the spider 49, but said wheels will swivel in opposite directions and when power is be- This mounting for the two sired position.

ing applied to the wheel, this will cause the tractor to turn in a very short space, practically turning upon the idler wheel 13 as a pivot.

The'upper end 19 of the fork 18 before mentioned, is cylindrical and is free both to turn and to move through the head 20 upon the outer end of the bracket 21, as before mentioned, and there is a short link 73 secured to the upper end which is pivotally connected to the outer end of a lever 74 which is fulcrumed at 75 upon a bracket 76 secured to the frame 10. The inner end of said lever is pivotally secured to one end of a link 77, the other end of which is pivotally connected to one end of abell crank lerer 78 which is pivoted at 79 to the frame. By elevating the free end of said hell crank lever. the inner end of the lever Tl. will be ('lepressed and the outer end being raised, will elevate the wheel B. Any desired means may be used for securing said bell crank lever for the purpose of holding the idler wheel in any position desired.

There is a downwardly extending bracket 80 near the forward end of the frame to which one end of a link 81 is pivotally secured, the other end thereof being pivotally bar extends beneath the beams 83 of the plows and the lower end of a bar 86 surrounds said U-shaped rod' 85 with its upper end pivotally secured to a bell crank lever 87 which is pivoted upon aframe, as shown in Fig. 1. Thus by throwing the bell crank lever 87 to its forward position, the bar 86 and the U-shaped rod will be dropped and allow the plow shares to fall to their de- Provision may also be allowed for holding the free end of the bell crank 87 in any desired position for regulating the depth of the furrow to be'turned, or for holding the shares entirely above ground, When, however, it is desired to hold the shares above ground, it is desirable that the idler wheel 13 be thrown to its lowest position. Also when it is desired for the tractor to travel along the roadway, the idler wheel will be thrown down so that its lower edge is on a level with the driving wheels.

In Fi s. 9 and 10, there is shown means for sti ening the forks of the driving wheels. The forks 17 and the means for applying power to the Wheels are the same brackets 93 from the frame 10. It will be readily understood that by this construction the forks 17 will be greatly stifiened and on striking an obstruction there is less chance of bending the head of the fork.

I claim as my invention:

1. A tractor including a main frame, plows carried by said frame for plowing, supporting wheels, one of which is adapted to travel in the furrow in advance of a plow and another wheel adapted to travel in the furrow behind the plow, ,means for steering said furrow wheels, means forpropelling said furrow wheels and vertically adjust able swivel wheel at one side of the frame arranged as and for the purpose set forth.

2. A tractor including a main frame, supporting wheels therefor located at each end of the frame and said-wheels mounted so that they can be turned simultaneously for steering means for driving said wheels, means for steering them simultaneously in opposite directions plows mounted in connection with said frame between said Wheels so that one of said supporting wheels will travel in the furrow in advance of a plow and the other wheel will travel in the furrow behind a plow, and a vertically adjustable swivel wheel mounted in connection with the frame to one side of said supportingdwheels so as to travel on the unplowed 3. A tractor including a main frame, a supporting wheel therefor, 'a yoke carrying said wheel with an upward projection pivoted to said frame so that the yoke and wheel may oscillate, means connected with said yoke for steering t-he Wheel, a double horizontal gear mounted on the projection of said yoke concentrically with the axis thereof, a power shaft mounted in said frame, a pinion thereon meshing with the upper bevel of said-horizontal gear, a vertical gear mounted in said yoke meshing with the lower part of said double gear, means for transmitting power from said last-men tioned gear' to,tl1e wheel so that it may be propelled while it is being steered and a vertically adjustable swivel wheel at one side of the frame arranged as and for the purpose set forth.

In witness whereof, I have hereunto affixed my signature in the "presence of the witnesses herein named.

, 'HENLEY EVERSQLE. Witnesses:

G. H. Bomn, E. H. MAYO. 

